General
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Target
3943d3d4ea41f1da39b9a5af2b0770c62e81779d2f20852c21e1608c5e6bfdfc.exe
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Size
4.2MB
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Sample
241125-cr7yzssrbs
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MD5
6c2e06aafb4acb8c62410c0e7e31bc49
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SHA1
834df800ddb24027200ee7bc3913601b7233897f
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SHA256
3943d3d4ea41f1da39b9a5af2b0770c62e81779d2f20852c21e1608c5e6bfdfc
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SHA512
ae7a2335cfc39fffc503e55a3f903f3cdc5b63ed960b49128607ee7247316345d74497afa7c40847499625f90556523d2c3219e246fecf3b8e631cac715b5684
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SSDEEP
98304:f5heVsXlKECN43oYmo9fXuR5DxAk0SA4JmAwONNKmR:f3eVsVKx+3tmq/w5Dak0SA4JRnKmR
Static task
static1
Behavioral task
behavioral1
Sample
3943d3d4ea41f1da39b9a5af2b0770c62e81779d2f20852c21e1608c5e6bfdfc.exe
Resource
win7-20240903-en
Malware Config
Targets
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Target
3943d3d4ea41f1da39b9a5af2b0770c62e81779d2f20852c21e1608c5e6bfdfc.exe
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Size
4.2MB
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MD5
6c2e06aafb4acb8c62410c0e7e31bc49
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SHA1
834df800ddb24027200ee7bc3913601b7233897f
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SHA256
3943d3d4ea41f1da39b9a5af2b0770c62e81779d2f20852c21e1608c5e6bfdfc
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SHA512
ae7a2335cfc39fffc503e55a3f903f3cdc5b63ed960b49128607ee7247316345d74497afa7c40847499625f90556523d2c3219e246fecf3b8e631cac715b5684
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SSDEEP
98304:f5heVsXlKECN43oYmo9fXuR5DxAk0SA4JmAwONNKmR:f3eVsVKx+3tmq/w5Dak0SA4JRnKmR
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Cryptbot family
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Uses browser remote debugging
Can be used control the browser and steal sensitive information such as credentials and session cookies.
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Identifies Wine through registry keys
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
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Loads dropped DLL
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v15
Persistence
Modify Authentication Process
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Modify Authentication Process
1Steal Web Session Cookie
1Unsecured Credentials
1Credentials In Files
1